I whipped up something simple for this last night, it just adds a video frame to the Attackpoint track viewer and follows along. See NewPatrick's
log for a great example.
You can add these parameters to your /sessiondata.jsp url:
vtype: "youtube" or "vimeo"
vid: the video id
voffset: (optional) adjustment in seconds for gps and video sync.
qr: (optional) url to exported quickroute jpg image.
(you guys already using this, you'll notice these params have changed...your links will redirect to the new format. those pipe characters can sometimes cause problems.)
I will integrate this a bit more nicely when I get a chance. overlaying the quickroute map would also be great but will require more work.